Spindle-step rail for spinning-frames



(No Mode l.)

F. LEGLERE;

SPINDLE STEP RAIL FOR SPINNING FRAMES.

No. 255,518. Patented Mar. 28,1882. v

Zizeww j UN TED STATES PATENT OFFICE.

FRANCIS LEGLERE, or PHILADELPHIA, PENNSYLVANIA.

SPlNDLE-STEP RAIL FOR SPINNING-FRAMES.

SPECIFICATION forming part of Letters Patent No. 255,518, dated March28,. 1882,

Application filed December 21, 1ss1. Nd model.)

To all whom it may concern:

Be it known that l, FRANCIS LEGLERE, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented a new and useful Improvement in SpindleStepRails for Spinning-Frames, of which the followingis a specification.

My invention consists in providing the spindle-step rail ofspinning-frames withclaspingbearings which are in part rigid with therail and in part yielding independently of the sa1ne,said bearings beingof metal homogeneous with that of the rail, and serving, when thespindle-steps are set in position upon the rail and the pressure ofset-screws or wedges is brought to bear against the yielding portions ofthe hearings, to produce a frictional bind upon the periphery'ot'thespindle-steps, so that said steps are firmly held from incidentallyslipping up or down while the machine is in operation.

My mode of construction is very simple and cheap, while it affords amore effective and convenient means for adjustingand firmly and securelyholding cylindrical spindle-steps in position upon the step-rail ofspinning-frames.

In the accompanying drawings, Figure l is a front perspective view of aportion of the step-rail ot a spinningframe to which my invention ofclaspin g bearin gs for spindle-steps is applied. In this view twospindle-steps and two adjusting-screws are shown, and also thetransverse form or profileof the rail, as well as the top and frontside. Fig. 2 is'a back view, in elevation, of the portion ofspindle-step rail shown in Fig.1,showing thespindle-steps,clasping-beariugs, and adjusting-screws, the latter being represented bydotted circles. Fig. 3 is a horizontal section of the rail,claspingbearings, and spindle-steps in the line 3 y of Fig. 2, the railand other parts being inverted, and that of the rail which constitutesits top, and also the adjustin -screws, being shown in inverted planview. verse section of the rail withits clasping-bearing clasping aspindle-step which is shown partly in elevation, and in section bybreaking out a portion thereof at the upper end.

A in the accompanying drawings is a steprail of a spinning-frame. Intransverse section Fig. 4 is a vertical transit may be of usual form onits upper and front faces. This rail is made of cast metal, either steelor iron, and it of iron the metal may be.

rendered malleable by the ordinary mode.

()n the under side of the cap portion a of the rail a clasping-bearing,B, of homogeneous metal with that of the rail, is formed. This bearingis of a form as shown in Fig. 3, which enables it to almost completelyencircle a spindle-step, (J, and from the said spindle-step it extendslongitudinally parallel, or nearly so, with the front portion, 1), ofthe rail a considerable distance, as shown at ein Fig. 3. All that partof the bearing B which is made to touch and inclose the spindle-step (Jand to extend longitudinally from it is constructed in relief from thecap portion a of the rail A; and said bearing is rigidly connected tothe rail, as at 0, being cast upon the under side of the said capportion, as indicated in Figs. 2, 3, and 4 of the drawings.

On the rear side of the portion b of the rail projecting bosses f arecast, and between these bosses are recesses d of segmental form. Thebosses and recesses are of a depth about equal to the bearing proper, B.The recesses cl allow the bearings proper, B, beyond their connectingportion, 0, to expand and move away from the spindle-step when the sameare relieved of pressure. In rear of each of the bosses fthe leverageend 0 of a bearing proper, B, is extended horizontally, so as to be inrelief from the rail beyond the point of connection 0, and also to standin rear of an adjusting-screw, D, or other analogous adjusting device,as shown in Fig. 3. Through the bosses and portion a of the railscrew-threaded holes are formed, and into the same tightening or setscrews D are passed and made to bear against the front surfaces of theleverage ends 6 of the bear ings. By means of the screws D the yieldingportions of the bearings can be'"made to bind firmly around theperiphery of the spindlesteps, and thereby hold the steps from moving upor down. The nicked ends ofthe screws are on the front side of the railA, and thus is afforded great convenience for ti htening up the hearingsaround the spindles from the front of the frame.

Instead of using screws for setting up the bearings, wedges might bedriven up vertically between the bosses f and the leverage ends a of thebearings; but I much prefer the screws, as the adjustments can be madequicker and from the front of the rail, whereas with the wedges theadjustment would require to be made from the rear thereof.

I have found that cast-metal bearings B having simply a rigid connectionat c with the rail will yield sufliciently, without danger of fracturingthe metal, for'effecting the firmest desirable hold upon thespindle-steps and this being so, the rail and bearings can be casttogetherot' homogeneous metal at acost much less than that at whichrails and ordinary bearings can be produced. Besides this, myconstruction of bearings is found even more effective for holding thesteps in place, and more convenient for adjustment of the spindle-stepswith respect to the spindles, as occasion requires.

My invention might be employed in connection with other thanspindle-step bearings to advantage.

What I claim as my invention, and desire to FRANCIS LEGLERE.

Witnesses:

JAMES GRoWE, ALF. D. WILER.

